Method and apparatus for interconnecting a plurality of terminal equipments to the ISDN
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United States of America Patent
Stats
-
Jul 28, 1998
Grant Date -
N/A
app pub date -
Oct 11, 1995
filing date -
Oct 11, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An interface port expansion device (302) allows for more than one terminal equipment (304, 306, 308 and 310) having embedded U-interface termination's to interface to the ISDN via the U interface. The port expansion device (302) can take the form of a separate stand-alone device or a circuit which is integrated into a terminal apparatus. The port expansion device (302) includes a plurality of local (secondary) U interface ports (314, 316, 318 and 324) for interconnecting the terminal equipment (304, 306, 308 and 310) and a network side U interface (312) for interconnection to the ISDN. In other aspects of the invention, methods for allowing a plurality of terminal equipment having embedded U-interface terminations to receive messages from and transmit messages to the Integrated Services Digital Network (ISDN) via a single network side U-interface are described.
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